Question Motherboard started having coil whine? I need advice on how to proceed.

[StutterB0B]

I recently noticed a coil whine coming from somewhere in my pc today (No telling how long it's actually been there since I usually work with noise cancelling headphones) and it has drove me up a wall trying to figure out exactly where it is coming from. After ruling out the PSU, AIO, and GPU it occurred to me that it could be coming from the motherboard itself though neither I nor my friends have ever had that particular component exhibit this behavior so it was not even a possibility in my mind until late . After doing some searching around I found a YouTube video of someone having the exact issue as me with an older board by the same manufacturer. I am seeing people either disable C-State in their BIOS, RMA their boards, or just deal with it. I am not quite sure which I should do? The board is less than 4 months old so it is well within the warranty period, however I need this system for work and can't wait for gigabytes rma process if they require my board be sent to them first. Is it safe to just deal with?

I tested both the AIO and GPU by unplugging them but the sound still persisted.
The PSU I put my ear against it and the sound definitely was not coming from it.

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[helpstar]

which hardware are you using?
in which situations is the coil wine the loudest?

 

[kerberos_20]

the only coils mainboard has is on VRM, it is those square boxes near CPU, inside it is a coil, which does resonate, frequency at which it resonates is usually outside of human hearing, sometimes it can hit human hearing frequency range which is called coil whine
switching cpu or psu can change coil frequency aswell, but it could be comming from ram overclock aswell, as idont know if its from cpu vrm or ram vrm, vrm can be tweaked in bios settings on most mainboards (load line calibration)

 

[StutterB0B]

which hardware are you using?
in which situations is the coil wine the loudest?

I realized at some point I changed the power plan to "High Performance" instead of balanced so all the cores were clocked to max in HW Monitor. The second it placed it back to "Balanced" disappeared almost completely until I place a load on the system. I have no overclocks on the CPU or RAM.

CPU: 13900k
GPU: ASUS TUF 5080 OC Edition
RAM: Crucial Pro RAM 96GB Kit (2x48GB) DDR5 5600MH Desktop Memory CP2K48G56C46U5
PSU: Corsair RM1000e (2023)
MOBO: GIGABYTE Z790 AORUS MASTER X